Man Made Glass (Often Grouped With Minerals In Lapidary)

Greenstone

Metabasalt / Chlorite-Epidote Schist

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides (Goethite)

Greenstone

Greenschist / Greenstone (contains epidote, chlorite, and actinolite)

Quartz Druzy Geode Fragment

Silicon Dioxide (SiO2)

Petrified Wood

Silicified Wood (primarily Quartz or Chalcedony, SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Turquoise with Pyrite

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O] with Iron Pyrite (FeS2)

Clear Quartz Sphere

Silicon Dioxide (SiO2)

Orange Quartzite (River Pebble)

Quartzite (SiO2 with iron oxide inclusions)

Quartz

Silicon Dioxide (SiO2)

Chert (often referred to as 'Jasper' when red)

Chert (microcrystalline quartz, SiO₂)

Smoky Quartz Geode Slice

Silicon Dioxide (SiO2)

Chert (Iron-stained)

Chert (SiO2)

Dalmation Stone (often called Dalmatian Jasper)

Antiperthite-rich Microgranite

Quartz

Silicon dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Green Aventurine

Silicon dioxide (SiO2) with Fuchsite inclusions

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chrysocolla on Matrix

Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O

White Chalcedony (likely Common Opal or Milky Quartz)

Silicon Dioxide (SiO2)

Orpiment

Orpiment (As2S3)

Chert (often colloquially called Flint)

Chert (Microcrystalline Quartz, SiO2)

Granite

Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)

Black Sapphire (Basaltic Blue Sapphire)

Corundum (Al2O3)

Gneiss (specifically Granitic Gneiss)

Gneissic Metamorphic Rock

Greenstone / Chert

Cryptocrystalline Quartz (SiO2) or Altered Basalt

Amygdaloidal Basalt

Vesicular-Amygdaloidal Basalt (Mafic Extrusive)

Vesicular Basalt with Epidote/Amygdaloidal Basalt

Amygdaloidal Basalt (Mg, Fe)2SiO4 + Ca2(Al, Fe)3(SiO4)3(OH)

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Blue Chalcedony

Chalcedony (a cryptocrystalline variety of Quartz - SiO₂)

White Quartz (Tumbled)

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Agate (translucent pebble)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Chalcanthite (Likely Synthetic/Lab-Grown)

Hydrated copper(II) sulfate (CuSO4·5H2O)

Map Jasper (Picasso Stone)

Metamorphosed Calcium Carbonate (Crystalline Limestone or Marble with Silicate inclusions/impurities)

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese

Jasper

Jasper (Silica-rich microcrystalline Quartz, SiO2 with Fe2O3 impurities)

Chert (often called Flint or Jasper if reddish)

Microcrystalline Quartz (SiO2)